Alarm-clock mechanism



A. S. TREGER ALARM CLOCK MECHANISM July 22 Filed D c- 20 1923 2Sheets-Sheet l July 22, 1924. 1.502.491.

A s. TREGER ALARM CLOCK MECHANISM Filed Dec. 20. 192:5 2 Sheets-Sheet 2:12, IHlllllilllllllllillllllll Patented July 22, 1924.

1,502,491 PATENT OFFICE.

ARON S. TREGER, OF INDEPENDENCE, KANSAS.

ALARM-CLOCK MECHANISM.

Application filed December 20, 1923.

To all whom it may concern:

Be it known that I, ARON S. TREGER, a resident of Independence, in thecounty of Montgomery and State of'Kansas, a citizen of the. UnitedStates, have invented certain new and useful Improvements in Alarm-ClockMechanism, of which the following is a specification. V

This invention relates to clocks and more especially to the alarmmechanism where the 7 works are set to release the hammer for the bellat a certain time.

The object of the invention isQto provide means to advance the time forwhich the release is provided so that if the setting in the originalinstance is unsatisfactory the period may be extended by separating theparts of the mechanism and advancing the release mechanism withoutallowing the alarm to be rung.

These and other objects and details of the invention are more fullydescribed in the following specification, set forth in the appendedclaims and illustrated in the accompanyingdrawings, wherein v Figure 1is a view of part of the clock workswith the dial removed and showingthe invention applied to the alarm mechanism, v

Fig. 2, is a side View of the same,

Fig. 3 is an enlarged side view of part of the alarm mechanism, I

Fig. 4 is a similar view with'the mechanism adapted for. re-setting,

Fig. 5 is a perspective view of the parts se arated. V

igs. 6, 7, 8 and 9 are views of a modification. 1

When an alarm clock is set for a certain hourand it is desired to re-setthe same to cover a period of twelve hours or greater in advance, asclocks have heretofore been made, it will be necessary to wait for fromone to two hours from the time the clock is to be set, before alarm canbe set for the desired hour. For instance, if at 3 :00 p. m. it isdesired to set alarmfor 6:00 a. m., it will be necessary to wait until 7:00, and possibly until 8:00 p. m. before it can be set to make thealarm go off at 6:00 a. m. This entails a loss of time in the waitingfor the time when it becomes possible that alarm can be set, which isobviated in the present invention by simply disconnecting certain partsand ad vanc-ing the hand and the parts immediately connected therewith.

Serial No. 681,724.

In the drawings the dial. 10 is shown as dotted and through the same, ata suitable point, passes the arbor 11 that carries the hand to indicatethe hour for which the alarm is set and at the outside of said dialwhile at the inner end is a knob 12 by which it is manipulated.

The hand carrying arbor 11 has near its outer end a gear wheel 13rotating every twelve hours and that is driven by the minute hand of theclock and geared down by the gear wheels 14, 15 and 16 and said wheel 13is connected with the arbor by means of a pin 17 that engages theshoulder 18 of an indent in the flange 19 of a disc 20 and a pin 21 thatplays in a hole 22 of the wheel 13.

The wheel 13 is loose on the arbor 11 as is the disc 20 but the wheeland disc are normally secured together by the pin 21 but at times it isnecessary to check the disc While the wheel moves. The pin 21 is held inconnection by a flat spring 23 that normally elevates the wheel 13 sothat the pin 21 is located in the hole 22 as best shown in Fig. 3, butwhen it is desired to permit of the independent movement of the partsthe spring 23 is depressed by the lip 24 of lever 25 and the wheel isforced away from the disc 20 by a week coil spring 26, that encirclesthe arbor, and disengages the pin 21.

When thus disengaged the arbor may be turned by its knob 12 to set thehead 27 to any other hour on the alarm'dial that is desired, the pin 17carrying the disc 20 and pin 21 to a new location around the wheel 13until the new period is reached and as the hole 22 reaches the pin 21,into which it then drops, connecting the parts and operatin the alarm inthe usual way. 7 V

In operation suppose at noon the alarm mechanism is set for 7 p. m. andbefore this time it is desired to reset the alarm for 6 a. m. The lever25 is thrown to the dotted position shown in Fig. 1 and spring 23 isdepressed to release pin 21 so that the arbor 11 and hand 27 may be setforward the twelve hours or so that is necessary and the pin 21 carriedthat circular distance from the hole 22; when the spring 23 is re leasedthe wheel 13 is raised to its normal position but hole 22 is free tomove around until pin 21is reached and the parts connected so that thealarm may be shortly sounded.

While Figs. 1 to 5 show that the device as applied to an alarm clock toadvance the time for ringing the alarm to about twentytwo hours in allwith the additional ele ments shown in Figs. 6 to 9 the period may befurther advanced to about twenty-four hours. p

In the latter case the pin 28i's part of a disc 29 secured to the arbor11 and has a downwardly extending lip 80 that passes overasemi-circularlever 81 that is pivoted at'32 an the wheel 13 when thelever 25 depresses; the spring 23. This lever 31 is forced againstdisc20 by a spring 33 under 28 just after shoulder 18 tell onto pin 28,by pushing lip 2el on spring 23, and when spring 23 is allowed toelevate wheel 13,-

lever is carried up with it, its upper ,fiang' moving: in the path ofand under pin 28, thi sfpreventing pin 21 from going back into hole 22and notch of flange 19 to pin 2 8, when li'p 2l of lever 25 isimmediately re- I er I1d34: having moved. upper notch of disc 206m fromunder pin 28 as it met pin 25 otdisc 20,; 'same'lever, 31 being pushedaside bypins 28 and25 after once coming out from under pin 28,permitting the shoulder 18 to dropfo'nto pin 28, thereby elevatingthefdetent at the end of-lever 23 and releasing the escapement dog.

keep alarm arrested while pin 28 is above notch of flange 19, Withoutwhich alarm would be released,and to hold pin 28 out of notchioffiangeltl from which it cannotescape by itself, and to permittheseparation and connection automatically, or disc 20 and wheel 13,thereby permitting two complete revolutions of wheel 13 before alarm isreleased (24e hrs.) by means o1": pin 21 and hole 22, the automaticdisconnection of which is assured by pin 35, that engages the end 34 ofsaid lever. 1

' Theend 23 of lever-23 arrests the movement of the escapement dog 25(Figs. 1 and 2) until the shoulder '18 drops ofi pin 17 or 28 to permitofthe further upward movement of spring 23 and lifting of thedetent 23.

Inorder to afford positive action on the wheel 13 by the spring 23 thehub 36 of the wheel has a circumferential groove and the spring has aslot for the passage of the arher that is shaped as a key hole 37 sothat when the circular part fits over the hub the elongated slotreceives the grooved part of the hub.

V This mechanism is'adaptable to any type of alarm clock and it isobvious that the necessary alterations or modifications mayllfldOptedfor such application without departing from the essentialfeatures above The 7 object of lever 3 1 is therefore, to

"connected with the clock mechanism, a

spring adapted to hold the gear wheel and d1sc inengagement, and a leveradapted to nullify the action of the spring. p

2, In alarm clock mechanism, the combination of an arborhaving a knoband an" indicating hand and a lateral pin'fa gear Wheel connected withthe clock mechanism,

a disc having a notched flange to be engaged bysaid lateral pin on thearbor, mansbohnecting the gear wheel to the disc, and means 'forreleasing the gear wheel from the di'sc.

y In an alarm clock mechanism, mecca bination ofjan arbor carrying anindicat ing hand, a disc loosely carried on the arbor, means forconnectnigjand releasingthe disc from the arbor, a wheel "geared withthe clock mechanism and connected with the disc, and means fordisconnecting the wheel from the'disc. l 4. y In an alarm clockmechanism, the combination of an arbor carrying an alarm dial hand, adisc having an indent and loose on the arbor, a'pin carried by thearbor' and engaging the indent, a gear wheel driven by the clockmechanism and adapted to :be

coupled with the disc, and a lever adapted to permit the disconnectionof the gear wheel and disc; V 7

5. In an alarm clock mechanism, the com= bination of an arbor 'fore thedial handand having a lateral pin, a disc loose on'the arbor and engagedby the pin, a wheel geared with the clock mechanism, a pin coupling thedisc with the wheel, a spring'holdingthe disc'and wheel in engagement,and alever adapted to depress the spring anduncouple the disc and wheel;I: j I 6 In an alarm clock mechanism, the ombination of a hand carryingarbor, aloose disc on the arbor, a1 pin on the arbor and adapted "toengage the disc, a-"geanwheel loose on "the' 'arbor and havingaperforation, a "pin" on one side of the disc and normally located in theperforation, a, light spring adaptedto separate the disc andwvheel'whenthe latter'iis 'released, a flat spring forcing the wheel-and disc intocontact, and a lever adapted t'o'fd'e press the latterspring and removeit from the wheel. t

, '7. In anfalarm clock mechanism. therein bination' of "an arborfforthe 'dialhand, a lateral pin, a disc having aninde'nted flange to beengaged by the said'p'in, a'pin on the lower sidefof'the disc, agearwheel driven I by the clock mechanismand having a'hole prevent theentrance of the pin in the indent, a gear Wheel carrying the lever andhaving a perforation, a pin beneath the disc adapted to fit theperforation, a spring adapted to separate the disc and gear Wheel, aspring having a detent to engage the es capement dog, and a leveradapted to depress the latter spring.

In testimony whereof I hereunto afiix my 20 signature.

ARON S. TREGER.

